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| Criterion |  UX Research Surveys |  Product Discovery Opportunity Interview |  UX Research User Interviews |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | When a topic needs to be validated broadly and many people can answer the same question, surveys gather structured feedback in a scalable form. Answers become comparable and segmentable instead of remaining merely anecdotal. | When opportunities are still hidden behind signals of need, it structures conversations around needs and obstacles. It looks for patterns that lead to new product opportunities. | When teams derive needs only from assumptions and real motives are missing, user interviews give direct access to behavior and meaning. Conversations from the target group's everyday life make patterns, tensions, and open questions solidly visible. | When demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 3-14 Tage | 30-60 min je Interview | 30–60 min per interview | 1-5 Tage |
Participantsdifferent | 50+ | 5-12 Interviews | 1 participant per interview | Nutzertraffic |
Formatdifferent | Async | Workshop + async | Workshop + async | Async |
Outputdifferent | Survey Results, Charts, Segment Insights | Interview Notes, Opportunity Themes, Customer Quotes | Interview Notes, Themes, Insight Summary | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | QuantitativeResearchValidation | DiscoveryInterviewsOpportunityCustomer | QualitativeResearchCustomerDiscovery | ValidationExperimentsDemandDiscovery |